RU175503U1 - Filter for air purification in internal combustion engines - Google Patents

Abstract

The invention relates to the field of purification of industrial gases and air, in particular for the purification of air of internal combustion engines, in particular in automobile and tractor engines. The technical result is achieved in that the filter for purifying air in internal combustion engines contains a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal perforated cylinders, between which a multi-beam paper is placed a curtain, upper and lower elastic caps, rigidly mounted on the ends of the perforated cylinders, and a filter cloth made in the form of a tubular knit from polymer inextensible and elastomeric threads and placed on the outer surface of the outer cylinder, while the tubular knit is made by a combined weaving of an eraser 3 + 1 and the smoothness knitted on the front side of the eraser in 12 looped rows of polyamide yarn. The technical result is to improve the quality of air cleaning and increase the service life atation of the filter.

Description

The utility model relates to the field of purification of industrial gases and air, in particular for air purification of internal combustion engines, in particular automobile and tractor engines.

A known filter for air purification, comprising a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal cylinders, between which a multi-beam paper curtain, elastic covers, upper and lower, of self-hardening sealant, are rigidly installed on perforated cylinders, and non-woven synthetic material (Multicolour album "Cars VAZ-2108, VAZ-2109". - M., 1989, p. 34, 35).

However, such a filter has a short service life due to poor regeneration, since the filtering multi-beam paper curtain is damaged, which reduces the filter service life and degrades the quality of cleaning.

Known filter material, made in the form of a single integumentary knitwear made of polymer threads, in which one of the sides of the filter surface contains pile elements. In the structure of such a filter material, an elastomeric thread forms an elastic cage, providing variable permeability during filtration and regeneration, and an inextensible thread creates a filter surface (patent RU 1437076, B01D 39/08, 11/15/1988).

However, such filter materials are twisted during operation, forming enlarged pores along the edges, which affects the quality of the filter. There is a possibility of abrasive wear of the engine cylinders and fuel consumption increases sharply.

Known filter element made in the form of a sleeve of elastic material, the manufacture of which uses non-woven artificial fiber used in an air cleaner for an internal combustion engine containing a cylindrical body with a dust hopper, a cylindrical filter element with outer and inner perforated shells, upper and lower end faces lids (patent RU 2015404, F02M 35/02, 06/30/1994).

However, the filter material from non-woven material is poorly regenerated, since it has pores of constant size both during filtration and during cleaning, which reduces the cleaning performance and quality.

A known filter for air purification in internal combustion engines, comprising a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal perforated cylinders, between which there is a multi-beam paper curtain, upper and lower elastic covers, rigidly installed at the ends of perforated cylinders, and a non-woven synthetic filter cloth made of lavsan and linen fibers and placed on the bunk the outer surface of the outer cylinder, and is equipped with textile fabric tapes made of heat-resistant nylon threads, one of which is located outside on a non-woven filter cloth, and the other between the multi-beam paper curtain and the side surface of the inner perforated cylinder (patent RU 2079336, IPC B01D 27/00, B01D 46/00, 05.20.1997).

The reasons that impede the achievement of the required technical result are the difficulty in manufacturing such a filter, which makes it difficult to quickly service a vehicle in an emergency, poor regeneration of the filter material, which affects the quality of air purification and reduces the service life of the filter.

A known filter for cleaning air from dust, comprising a housing, air supply and air exhaust units, a filter element located inside the housing, made of a filter cloth bent by a zigzag with the formation of upper and lower ribs and equipped with end filter inserts, and sealed relative to dusty and cleaned zones air around the perimeter due to the flanging of the edges of the filter cloth and filter inserts (patent RU 2188063, IPC B01D 46/02, B01D 46/52, 08/27/2002).

However, the used filter cloth does not provide high performance air purification process, as it has a low dust-holding ability.

The closest is a filter for air purification in internal combustion engines, comprising a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal perforated cylinders, between which a multi-beam paper curtain, upper and lower elastic covers are placed, rigidly mounted on the ends of perforated cylinders and a filter cloth placed on the outer surface of the outer cylinder and made in the form tubular knitwear made of polymer inextensible and elastomeric yarns, in the structure of which the elastomeric yarn is located between the loops of inextensible yarns in the form of a footer with alternation through one loop and knitted into loops with inextensible yarn with alternation: through 4-8 loops along the loop column and through 3- 5 rows — along the loop row, and the loop module of inextensible filament is 3.4 times larger than the loop module of elastomeric thread (RF patent 2135264, IPC B01D 46/52, B01D 39/08, F02M 35/02, 08/27/1999).

However, the low density of the filter cloth does not provide protection against small, suspended particles and does not provide resistance to the action of air flows, as a result of which its permeability rapidly increases during operation and, accordingly, the efficiency decreases.

The objective of the utility model is to develop a filter for air purification in internal combustion engines, which has high performance properties throughout its entire life.

The technical result is to improve the quality of air purification and increase the life of the filter.

The technical result is achieved by the fact that the filter for air purification in internal combustion engines contains a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal perforated cylinders, between which a multi-beam paper curtain, upper and lower elastic caps rigidly mounted on the ends of perforated cylinders and a filter cloth made in the form of a tubular knit made of polymer non-growing of pressing and elastomeric yarns and an outer cylinder placed on the outer surface, while the tubular knit is made by combined weaving of the 3 + 1 eraser and smooth, knitted on the front side of the eraser in 12 looped rows of polyamide yarn.

The implementation of the filter for air purification in internal combustion engines with a filter cloth in the form of tubular knitwear made of polymer inextensible and elastomeric yarns by combined weaving of an eraser 3 + 1 and a smooth knit on the front side of the eraser in 12 looped rows of polyamide yarn, improves the quality of air purification and increased filter life due to more effective protection against fine suspended particles and the possibility of its regeneration. The presence of a 3 + 1 eraser from simultaneously knitted inextensible and elastomeric threads provides more efficient capture of mechanical impurities due to the denser loop structure of the two-layer weave, and the presence of smoothness knitted on the front side of the eraser in 12 looped rows of inextensible polyamide yarn provides more efficient capture of mechanical impurities , thereby protecting the inner layers from clogging pores, performing the functions of a prefilter. In addition, the implementation of a filter cloth in the form of a tubular knit made of polymer inextensible and elastomeric yarns by combined weaving of an eraser 3 + 1 and a surface knitted on the front side of the eraser in 12 looped rows of polyamide yarn allows its regeneration. All this provides an increase in the quality of air purification and an increase in the life of the filter.

In FIG. 1 shows a General view in section of a filter for air purification in internal combustion engines.

In FIG. Figure 2 shows a graphical record of the combined weaving of the eraser 3 + 1 and the surface knitted on the front side of the eraser in 12 looped rows.

The filter for air purification in internal combustion engines contains a housing 1 attached to the engine with a cover 2 and a filter element 3 mounted in the housing 1. The filter element 3 is made in the form of concentrically arranged external perforated cylinder 4 and internal perforated cylinder 5, between which there is a multi-beam paper curtain 6. At the ends of the perforated cylinders 4 and 5, the upper and lower elastic covers 7 and 8 are rigidly mounted (respectively). On the outer surface of the outer perforated cylinder 4 there is a filter cloth 9 fixed to the upper 7 and lower 8 by elastic covers.

The filter cloth 9 is made in the form of a tubular knit from polymer inextensible and elastomeric threads. The tubular knit 9 is made by combining an eraser 3 + 1 by simultaneously knitting a polyamide yarn 10 (inextensible yarn) and a polyurethane yarn 11 (elastomeric yarn) with a knitting depth of h = 1.4-2.8 mm and a polyurethane yarn tension of 2.9-3.2 N and a polyamide yarn 0.8- 1.6 N and smooth, knitted on the front side of the eraser in 12 looped rows of polyamide yarn 10.

Tubular knitwear with combined weaving is knitted on a class 14 flat-wing machine by turning off the locking systems of the rear needle bar when knitting twelve looped rows by weaving the surface on the front loops of the eraser. Thus, from each front loop of the eraser, the first row of the smooth surface begins and on it ends the knitting of the smooth surface by knitting the last twelfth loop. At the end of knitting, the smooths on the front loops turn on the needles of the rear needle bar, knitting the loops of the eraser. The cycle (row of the eraser 3 + 1 and 12 rows of smoothness from each front loop of the eraser) is repeated in each loop series. Thus, on the front surface of the tubular knitwear with a 3 + 1 eraser weave, in each row of it transverse tubes form from the surface weave, which form folds.

In this case, at the end of knitting, a cylindrical knitted product is formed - a filter cloth 9, containing a smooth surface on the outer (front) surface of the fold 12.

The filter cloth 9 is worn on the outer perforated cylinder 4 and secured using the upper 7 and lower 8 elastic covers. Then the filter element is installed in the housing 1 of the filter.

The filter for air purification in internal combustion engines works as follows.

The air passing through the pores of the knitted filter cloth 9, receives a preliminary cleaning not only from large mechanical particles, but also from small suspended particles. At the same time, the dense folds formed on the outer surface 12 by the surface weave retain mechanical particles, thereby protecting the inner layer of knitwear - the eraser from clogging pores (acting as a prefilter) and, together with the eraser, provide more efficient capture of mechanical impurities due to the denser loop structure of the two-layer combined weave .

Then, passing through the multi-beam paper curtain 6, the air gets finer cleaning and enters the carburetor to form an air-gasoline mixture. When cleaning air, the filter cloth 9 on the surface of the cylinder 4 is in a dense state, which ensures high-quality air cleaning.

Stretched elastomeric threads 11 in the structure of the fabric provide a snug fit loops to the surface of the filter. During the regeneration of the filter cloth, the loop structure is stretched in the longitudinal and transverse directions, which allows to increase the pores, and with the help of the reverse air flow, the retained mechanical particles are easily removed from the pores of the filter cloth.

Thus, the filter for air purification in internal combustion engines, comprising a housing attached to the engine with a cover and a filter element mounted in the housing, is fitted with a filter cloth on the outer perforated cylinder made in the form of a tubular knit made of polymer inextensible and elastomeric threads with a combined weave of an eraser 3 +1 and the surface knitted on the front side of the eraser in 12 looped rows of polyamide yarn, improves the quality of air purification and increases the term filter operation.

Claims (1)

A filter for air purification in internal combustion engines, comprising a housing attached to the engine with a cover and a filter element mounted in the housing, made in the form of concentrically arranged external and internal perforated cylinders, between which a multi-beam paper curtain, upper and lower elastic covers rigidly mounted on the ends of the perforated cylinders, and the filter cloth, made in the form of tubular knitwear from polymer inextensible and elastomeric threads and placed o on the outer surface of the outer cylinder, characterized in that the tubular knitwear is made by combining the 3 + 1 eraser and the smoothness knitted on the front side of the eraser in 12 looped rows of polyamide yarn.

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